llvm-svn: 74953

prologue like this:

__Z3fooi:
Leh_func_begin1:
LBB1_0: ## entry
        pushl   %ebp
Llabel1:
        movl    %esp, %ebp
Llabel2:
        pushl   %esi
Llabel3:
        subl    $20, %esp
        call    "L1$pb"
"L1$pb":
        popl    %esi

The "pushl %ebp" needs a table entry specifying the offset. The "movl %esp,
%ebp" makes %ebp the new stack frame register, so that needs to be specified in
DWARF. And "pushl %esi" saves the callee-saved %esi register, which also needs
to be specified in DWARF.

Before, all of this logic was in one method. This didn't work too well, because
as you can see there are multiple FDE line entries that need to be created.

This fix creates the "MachineMove" objects directly when they're needed; instead
of waiting until the end, and losing information.

llvm-svn: 74952

llvm-svn: 74951

llvm-svn: 74950

llvm-svn: 74949

llvm-svn: 74948

llvm-svn: 74947

llvm-svn: 74946

llvm-svn: 74945

Kevin Enderby!

llvm-svn: 74944

llvm-svn: 74943

llvm-svn: 74942

llvm-svn: 74941

llvm-svn: 74938

llvm-svn: 74937

llvm-svn: 74936

llvm-svn: 74935

llvm-svn: 74934

Olaf Krzikalla!

llvm-svn: 74933

not 64, because we read at most 32 bits at a time.  OTOH, "Result" must
be 64-bits and insertion into it must be 64-bit clean.  Thanks to Ivan
Sorokin for bringing this up.

llvm-svn: 74932

llvm-svn: 74931

by Eric Rannaud!

llvm-svn: 74930

uint8_t (via 'foo & 255'), i replaced this with an explicit (uint8_t)
cast which is equivalent, faster and more correct (silences
type-related warnings). Also, following coding standards I replaced
post-increment with pre-increment."

Patch by Ryan Flynn!

llvm-svn: 74929

llvm-svn: 74928

This fixes PR4512 and eliminating static ctors is always good.  Losing
thread safety is unfortunate, but the code is just incredibly poorly
designed.

If someone is interested, the "right" solution is to split
DynamicLibrary.cpp into two separate pieces: a stateless piece in
libsystem, and a simple support file in libsupport that has the
"state" (e.g.  AddSymbol) in managed static objects.

Doing this would both fix memory leaks we already have, as well as make
the code thread safe again.  it would also make sense to move all the
unix specific code in System/DynamicLibrary.cpp into 
System/Unix/DynamicLibrary.inc.

llvm-svn: 74927

llvm-svn: 74926

llvm-svn: 74925

llvm-svn: 74924

llvm-svn: 74923

This will replace exit()/abort() style error handling with an API
that allows clients to register custom error handling hooks.
The default is to call exit(1) when no error handler is provided.

llvm-svn: 74922

llvm-svn: 74920

Convert the CharInfo table to be statically initialized, instead of dynamically initialized.  Patch by Ryan Flynn!

llvm-svn: 74919

llvm-svn: 74918

declaration for a builtin.

llvm-svn: 74917

llvm-svn: 74915

llvm-svn: 74914

llvm-svn: 74913

Sanjiv complained about the need to maintain local changes to
lib/CompilerDriver.

llvm-svn: 74912

FILE type, rather than using name lookup to find FILE within the
translation unit. Within precompiled headers, FILE is treated as yet
another "special type" (like __builtin_va_list).

This change should provide a performance improvement (not verified),
since the lookup into the translation unit declaration 
forces the (otherwise unneeded) construction of a large hash table.
More importantly, with precompiled headers, the construction
of that table requires deserializing most of the top-level
declarations from the precompiled header, which are then unused.

Fixes PR 4509.

llvm-svn: 74911

llvm-svn: 74910